<template>
  <div id="app">

    <!-- 头部 -->
    <mt-header fixed title="lcnb" class="header">
		<span slot="left" @click="goback" v-show="flag">
			<mt-button icon="back" @click="goback">返回</mt-button>
		</span>
	</mt-header>
	<!-- 中间部分 -->
	<transition >
		<router-view></router-view>
	</transition>

    <!-- 底部 -->
    <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item " to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link a class="mui-tab-item" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link a class="mui-tab-item" to="/shop">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id='badge'>{{$store.getters.getAllCount}}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link a class="mui-tab-item" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
  </div>
</template>

<script>
export default {
  name: 'App',
  data(){
	  return{
		  flag:false
	  }

  },
  methods:{
	  goback(){
		  this.$router.go(-1)
	  }
  },

  ////监听路由地址
  watch: {
    "$route.path": function(newVal) {
      if (newVal === "/home") {
        this.flag = false;
      } else {
        this.flag = true;
      }
    }
  }
}
</script>

<style scoped>
/* 组件切换时候的动画 */
#app{
  padding-top: 40px;
  padding-bottom: 50px;
  overflow-x: hidden;
}
.v-enter{
	opacity:0;
	transform: translateX(100%);

}
.v-leave{
		opacity:0;
		transform: translateX(100%);
		position:absolute;
		

}
.v-enter-active,.v-leave-active{
	transition: all 0.4s ease;
}


</style>